Mitsubishi Electronics QSPCU ユーザーズマニュアル
9
EMC, LOW VOLTAGE, AND MACHINERY DIRECTIVES
9.2 Requirement to Conform to the Low Voltage Directive
9.2.5 External wiring
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INDEX
9.2.5 External wiring
(1) 24VDC external power supply
This power supply must include a reinforced insulation for 24VDC circuit to prevent
dangerous voltage for CC-Link Safety remote I/O module.
dangerous voltage for CC-Link Safety remote I/O module.
(2) External devices
When a device with a hazardous voltage circuit is externally connected to the
programmable controller, use the device whose interface circuit section to the
programmable controller has the reinforced insulation against the hazardous voltage
circuit.
programmable controller, use the device whose interface circuit section to the
programmable controller has the reinforced insulation against the hazardous voltage
circuit.
(3) Reinforced insulation
The reinforced insulation covers the withstand voltages shown in Table9.4.
Table9.4 Reinforced Insulation Withstand Voltage
(Installation Category II, source : IEC664)
Rated voltage of hazardous
voltage area
Surge withstand voltage
(1.2/50 s)
150VAC or below
2500V
300VAC or below
4000V